I have used several Vit C's through the years. I started at 36 and am now 42. I've tried several different high end Vit C's and one from Sephora by Ole Henrickson - not good at all. Cellex C does a remarkable Job. Ive used it for almost 1 year w/ the Hydra B. I also use the moisturizer, eye gel and LOVE the cleanser. I not longer have bumpy skin, my sun spots have faded - not completely but much more then I'd hoped.

Love it and its superior to all the others in the market (and i tried ALL of them...jan marini,skinceuticals,obagi,IS Clinical,Peter thomas roth,skin medica,revive)...you name it.
get this one if your looking for the best vit-c serum.

I've tried so many high-end vitamin c serums, this is the only one that doesn't either smell gross or leave my face all shiny and greasy-looking. I used it for a few years, got tired of spending the money, quit, and after a few weeks I decided I didn't like the way my skin was looking, so I started back up and haven't looked back. I used to deliberately sunburn my skin on a daily basis, but consid...read moreering that and my age (late 50s), my skin really doesn't look bad at all, and I think a lot of that is because I've used Cellex-C Advanced C serum regularly for fifteen years or so.

I use the cream version of this serum, Cellex-C Advanced-C Skin Tightening Cream. It is a powerful anti-oxidant and collagen builder. I am just blown away by how firm, even toned and glowing the skin on my face and neck are. Cellex-C Advanced-C Skin Tightening Cream is the best vitamin C product and the best anti-oxidant, cream or serum, I have ever used. My skin has no wrinkles, does not sag and...read more just glows. Women alway compliment me on my skin and ask me what I use. I am 40 and am mistaken repeatedly for my early 20s and was even mistaken two years for being under 18. I kid you not.
I have experimented with other products containing human growth factor or the coffee berry anti-oxidant (RevaleSkin), but NOTHING compares to Cellex-C Advanced-C Skin Tightening Cream. Along with Retin-A and glycolic acid, I intend to be buried with this stuff. It is worth every penny

research demonstrates that topical vitamin c is definitely benefical to your skin! This will help improve your skin tone, help with scars, hyperpigmentation, sun damage, etc. Also, helps protect against future sun damage. About 90% of aging to the skin is thought to be caused by sun damage, so preventing and treating it is very important. Cellex-C is one of the original developers of topical vitamin C, and is a reputable company.